Psilatricolporites |
Psilatricolporites distinctus
|
North America |
Albian |
Campanian |
Psilatricolporites |
Psilatricolporites subtilis
|
North America |
Cenomanian |
Campanian |
Pterocaryapollenites |
Pterocaryapollenites stellatus
|
North America |
Maastrichtian |
Paleocene |
Pulcheripollenites |
Pulcheripollenites krempii
|
North America |
Campanian |
Maastrichtian |
Quadricolpites |
Quadricolpites reticulatus
|
North America |
Albian |
|
Racemonocolpites |
Racemonocolpites exoticus
|
North America |
Albian |
|
Retimonocolpites |
Retimonocolpites clavatus
|
North America |
Albian |
|
Retimonocolpites |
Retimonocolpites crassatus
|
North America |
Albian |
|
Retimonocolpites |
Retimonocolpites dividuus
|
North America |
Aptian |
Santonian |
Retimonocolpites |
Retimonocolpites excelsus
|
North America |
Albian |
|
Retimonocolpites |
Retimonocolpites larus
|
North America |
Albian |
|
Retitrescolpites |
Retitrescolpites anguloluminosus
|
North America |
Turonian |
Paleocene |
Retitrescolpites |
Retitrescolpites azemae
|
North America |
Albian |
|
Retitrescolpites |
Retitrescolpites concinnatus
|
North America |
Maastrichtian |
|
Retitrescolpites |
Retitrescolpites kempiae
|
North America |
Albian |
|
Retitricolpites |
Retitricolpites minutus
|
North America |
Cenomanian |
Campanian |
Retitricolpites |
Retitricolpites operculatus
|
North America |
Cenomanian |
|